diff options
| author | Stanislav Fomichev <sdf@google.com> | 2019-08-14 20:37:49 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-08-18 00:18:54 +0300 |
| commit | 8f51dfc73bf181f2304e1498f55d5f452e060cbe (patch) | |
| tree | 1b3877adff06cd12dbeac725521cef44d2ebf7d7 /include/net/bpf_sk_storage.h | |
| parent | b0e4701ce15d0381cdea0643c7f0a35dc529cec2 (diff) | |
| download | linux-8f51dfc73bf181f2304e1498f55d5f452e060cbe.tar.xz | |
bpf: support cloning sk storage on accept()
Add new helper bpf_sk_storage_clone which optionally clones sk storage
and call it from sk_clone_lock.
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include/net/bpf_sk_storage.h')
| -rw-r--r-- | include/net/bpf_sk_storage.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/bpf_sk_storage.h b/include/net/bpf_sk_storage.h index b9dcb02e756b..8e4f831d2e52 100644 --- a/include/net/bpf_sk_storage.h +++ b/include/net/bpf_sk_storage.h @@ -10,4 +10,14 @@ void bpf_sk_storage_free(struct sock *sk); extern const struct bpf_func_proto bpf_sk_storage_get_proto; extern const struct bpf_func_proto bpf_sk_storage_delete_proto; +#ifdef CONFIG_BPF_SYSCALL +int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk); +#else +static inline int bpf_sk_storage_clone(const struct sock *sk, + struct sock *newsk) +{ + return 0; +} +#endif + #endif /* _BPF_SK_STORAGE_H */ |